Status:

TERMINATED

Individualized Positive End-expiratory Pressure Guided by End-expiratory Lung Volume in the Acute Respiratory Distress Syndrome

Lead Sponsor:

Fondazione Policlinico Universitario Agostino Gemelli IRCCS

Collaborating Sponsors:

ClinicalTrialCenter

FerrarioDati

Conditions:

Respiratory Distress Syndrome, Adult

Eligibility:

All Genders

18-85 years

Phase:

PHASE3

Brief Summary

During the acute respiratory distress syndrome (ARDS), patients' response to positive end-expiratory pressure (PEEP) is variable according to different degrees of lung recruitability. The search for a...

Detailed Description

ARDS patients with a PaO2/FiO2 ratio equal or below 150 mmHg (during mechanical ventilation with PEEP 5 cmH2O) will be enrolled within 24 hours from endo-tracheal intubation. To standardize lung volu...

Eligibility Criteria

Inclusion

  • Eligibility inclusion criteria, according to the ARDS Berlin definition, will be assessed within the first 24 hours from the initiation of invasive mechanical ventilation:
  • Acute respiratory failure within 1 week of a known clinical insult or new or worsening respiratory symptoms;
  • Bilateral infiltrates at the chest x-ray or CT scan, not fully explained by effusions, lobar/lung collapse, or nodules;
  • Respiratory failure not fully explained by cardiac failure or fluid overload; objective assessment required to exclude hydrostatic edema if no risk factor present.
  • PaO2/FiO2 ratio≤150 mmHg after 30 mins - 1 hour of mechanical ventilation with PEEP=5 cmH2O.
  • Written informed consent.
  • Exclusion Criteria:
  • Pregnancy;
  • Pneumothorax;
  • Acute brain injury;
  • Clinical signs of history of decompensated heart failure (New York Heart Association class 3-4 before the acute phase of the disease or documented ejection fraction\<35% or pulmonary capillary wedge pressure\>18 mmHg) or acute coronary syndrome;
  • Intubation as a result of an acute exacerbation of chronic pulmonary disease: chronic obstructive pulmonary disease, asthma, cystic fibrosis, etc;
  • Clinically evident intrinsic PEEP (≥2 cmH2O) during screening visit (End-expiratory pause to achieve Flow=0);
  • BMI\>35;
  • BMI\<15 or body weight\<35 Kg;
  • Any chronic disease requiring long-term oxygen therapy or mechanical ventilation at home;
  • Neuromuscular disease of any kind;
  • Severe chronic liver disease (Child-Pugh C or worse);
  • Bone marrow transplantation or chemotherapy-induced neutropenia;
  • History of liver or lung transplant;
  • Decision to withhold life-sustaining treatment;
  • Need for therapy with inhaled nitric oxide due to documented pulmonary arterial hypertension;
  • Life-threatening hypoxemia deemed to require extracorporeal membrane oxygenation (ECMO);
  • Presence of documented barotrauma;
  • High risk of mortality within 3 months from other than ARDS (severe neurological damage, age \>85 years and cancer patients in terminal stages of the disease).
  • Persistent hemodynamic instability, intractable shock (norepinephrine\>1 mcg/kg/h and/or blood lactate\>5 mmol/L and/or considered too hemodynamically unstable for enrolment in the study by the patient's managing physician).
  • More than 24 hours from endotracheal intubation to the time of the screening visit.

Exclusion

    Key Trial Info

    Start Date :

    November 1 2022

    Trial Type :

    INTERVENTIONAL

    Allocation :

    ACTUAL

    End Date :

    June 30 2025

    Estimated Enrollment :

    18 Patients enrolled

    Trial Details

    Trial ID

    NCT04012073

    Start Date

    November 1 2022

    End Date

    June 30 2025

    Last Update

    September 30 2025

    Active Locations (10)

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    Page 1 of 3 (10 locations)

    1

    Policlinico di Bari

    Bari, Italy

    2

    Policlinico Sant'Orsola

    Bologna, Italy

    3

    Azienda ospedaliero-universitaria Mater Domini

    Catanzaro, Italy

    4

    SS. Annunziata hospital

    Chieti, Italy